Public health investigation and response to a hepatitis A outbreak from imported scallops consumed raw-Hawaii, 2016.

Autor:	Viray MA; Disease Outbreak Control Division, Hawaii State Department of Health, Honolulu, HI, USA., Hofmeister MG; Division of Viral Hepatitis, Centers for Disease Control and Prevention, Atlanta, GA, USA.; Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA, USA., Johnston DI; Disease Outbreak Control Division, Hawaii State Department of Health, Honolulu, HI, USA., Krishnasamy VP; Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA, USA.; Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA., Nichols C; Disease Outbreak Control Division, Hawaii State Department of Health, Honolulu, HI, USA., Foster MA; Division of Viral Hepatitis, Centers for Disease Control and Prevention, Atlanta, GA, USA., Balajadia R; Disease Outbreak Control Division, Hawaii State Department of Health, Honolulu, HI, USA., Wise ME; Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA., Manuzak A; Disease Outbreak Control Division, Hawaii State Department of Health, Honolulu, HI, USA., Lin Y; Division of Viral Hepatitis, Centers for Disease Control and Prevention, Atlanta, GA, USA., Xia G; Division of Viral Hepatitis, Centers for Disease Control and Prevention, Atlanta, GA, USA., Basler C; Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA., Nsubuga J; Gulf Coast Seafood Laboratory, Division of Seafood Science and Technology, United States Food and Drug Administration, Dauphin Island, AL, USA., Woods J; Gulf Coast Seafood Laboratory, Division of Seafood Science and Technology, United States Food and Drug Administration, Dauphin Island, AL, USA., Park SY; Disease Outbreak Control Division, Hawaii State Department of Health, Honolulu, HI, USA.
Jazyk:	angličtina
Zdroj:	Epidemiology and infection [Epidemiol Infect] 2018 Oct 17; Vol. 147, pp. e28. Date of Electronic Publication: 2018 Oct 17.
DOI:	10.1017/S0950268818002844
Abstrakt:	During the summer of 2016, the Hawaii Department of Health responded to the second-largest domestic foodborne hepatitis A virus (HAV) outbreak in the post-vaccine era. The epidemiological investigation included case finding and investigation, sequencing of RNA positive clinical specimens, product trace-back and virologic testing and sequencing of HAV RNA from the product. Additionally, an online survey open to all Hawaii residents was conducted to estimate baseline commercial food consumption. We identified 292 confirmed HAV cases, of whom 11 (4%) were possible secondary cases. Seventy-four (25%) were hospitalised and there were two deaths. Among all cases, 94% reported eating at Oahu or Kauai Island branches of Restaurant Chain A, with 86% of those cases reporting raw scallop consumption. In contrast, a food consumption survey conducted during the outbreak indicated 25% of Oahu residents patronised Restaurant Chain A in the 7 weeks before the survey. Product trace-back revealed a single distributor that supplied scallops imported from the Philippines to Restaurant Chain A. Recovery, amplification and sequence comparison of HAV recovered from scallops revealed viral sequences matching those from case-patients. Removal of product from implicated restaurants and vaccination of those potentially exposed led to the cessation of the outbreak. This outbreak further highlights the need for improved imported food safety.
Databáze:	MEDLINE
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